The three Invaders return to their home prefecture of Hokkaido for a required summer school day. On the bus ride to school, Mone starts talking about Hokkaido's seven folk legends while Chihori shares random facts about space. As Yuina responds to the girls' wacky conversation with her usual comical comebacks, she is overcome with a very strange feeling about the situation.
And that sound must mean 
I got it right or something.
.وذلك الصوت يعني أنّ إجابتي كانت صحيحة
¿El ruido ese significa que acerté?
¿El ruido ese significa que he acertado?
Ce bruit doit signifier
que j’ai bien répondu.
E quel suono probabilmente significava
che ho dato la risposta giusta.
E aquele som, isso deve significar
que eu acertei ou algo assim.
Судя по звуку,
я сделала что-то правильно.